# -*- coding: utf-8 -*-
import sys
sys.setrecursionlimit(10**9)
INF=10**18
MOD=10**9+7
input=lambda: sys.stdin.readline().rstrip()
YesNo=lambda b: bool([print('Yes')] if b else print('No'))
YESNO=lambda b: bool([print('YES')] if b else print('NO'))
int1=lambda x:int(x)-1

X=int(input())
if X>=1800:
    print(1)
elif X>=1600:
    print(2)
elif X>=1400:
    print(3)
elif X>=1200:
    print(4)
elif X>=1000:
    print(5)
elif X>=800:
    print(6)
elif X>=600:
    print(7)
elif X>=400:
    print(8) import sys sys sys.setrecursionlimit(10**9) sys.setrecursionlimit sys setrecursionlimit 10**9 10 9 INF=10**18 INF 10**18 10 18 MOD=10**9+7 MOD 10**9+7 10**9 10 9 7 input=lambda: sys.stdin.readline().rstrip() input lambda: sys.stdin.readline().rstrip() sys.stdin.readline().rstrip() sys.stdin.readline().rstrip sys.stdin.readline() sys.stdin.readline sys.stdin sys stdin readline rstrip YesNo=lambda b: bool([print('Yes')] if b else print('No')) YesNo lambda b: bool([print('Yes')] if b else print('No')) bool([print('Yes')] if b else print('No')) bool [print('Yes')] if b else print('No') b [print('Yes')] print('Yes') print 'Yes' print('No') print 'No' b YESNO=lambda b: bool([print('YES')] if b else print('NO')) YESNO lambda b: bool([print('YES')] if b else print('NO')) bool([print('YES')] if b else print('NO')) bool [print('YES')] if b else print('NO') b [print('YES')] print('YES') print 'YES' print('NO') print 'NO' b int1=lambda x:int(x)-1 int1 lambda x:int(x)-1 int(x)-1 int(x) int x 1 x X=int(input()) X int(input()) int input() input if X>=1800:
    print(1)
elif X>=1600:
    print(2)
elif X>=1400:
    print(3)
elif X>=1200:
    print(4)
elif X>=1000:
    print(5)
elif X>=800:
    print(6)
elif X>=600:
    print(7)
elif X>=400:
    print(8) X>=1800 X 1800 print(1) print 1 elif X>=1600:
    print(2) X>=1600 X 1600 print(2) print 2 elif X>=1400:
    print(3) X>=1400 X 1400 print(3) print 3 elif X>=1200:
    print(4) X>=1200 X 1200 print(4) print 4 elif X>=1000:
    print(5) X>=1000 X 1000 print(5) print 5 elif X>=800:
    print(6) X>=800 X 800 print(6) print 6 elif X>=600:
    print(7) X>=600 X 600 print(7) print 7 elif X>=400:
    print(8) X>=400 X 400 print(8) print 8 INF=10**18 10**18 INF X=int(input()) int(input()) X MOD=10**9+7 10**9+7 MOD YesNo=lambda b: bool([print('Yes')] if b else print('No')) lambda b: bool([print('Yes')] if b else print('No')) YesNo YESNO=lambda b: bool([print('YES')] if b else print('NO')) lambda b: bool([print('YES')] if b else print('NO')) YESNO input=lambda: sys.stdin.readline().rstrip() lambda: sys.stdin.readline().rstrip() input int1=lambda x:int(x)-1 lambda x:int(x)-1 int1
# -*- coding: utf-8 -*-
import sys
sys.setrecursionlimit(10**9)
INF=10**18
MOD=10**9+7
input=lambda: sys.stdin.readline().rstrip()
YesNo=lambda b: bool([print('Yes')] if b else print('No'))
YESNO=lambda b: bool([print('YES')] if b else print('NO'))
int1=lambda x:int(x)-1

X=int(input())
if X>=1800:
    print(1)
elif X>=1600:
    print(2)
elif X>=1400:
    print(3)
elif X>=1200:
    print(4)
elif X>=1000:
    print(5)
elif X>=800:
    print(6)
elif X>=600:
    print(7)
elif X>=400:
    print(8)